1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dominik [7]
3 years ago
5

Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He wrote a system of equations to represent th

is situation, letting x represent the number of nickels and y represent the number of quarters. Then he solved the system by graphing. What is the solution?
Mathematics
1 answer:
Gwar [14]3 years ago
8 0

Answer:

6 nickels and 9 quarters

Step-by-step explanation:

x- nickels

y- quarters

----------------

the 2 equations are:

  • x+y=15
  • y-x= 3

add up the 2 equations:

  • 2y= 18
  • y=9

then

  • x= 15-9
  • x=6
You might be interested in
Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.
Llana [10]

Sam's solution is incorrect. the correct answer is x=3


6 0
3 years ago
If something cost 15$ and he wants to tip 20% how much would it be
ANTONII [103]
The answer to your question would be $18
7 0
3 years ago
Read 2 more answers
Write an equation in point-slope form for each line (If possible please show work)
Archy [21]

Answer: y-2=1/4(x-1)

Step-by-step explanation:

The formula for point-slope is y-y₁=m(x-x₁). Since we are given the slope m, we can fill that in. We are also given the point (x₁,y₁). We can also fill that in.

y-2=1/4(x-1)

8 0
3 years ago
Marvin earns $8.25 per hour at a summer job. He wants to buy a video game system that cost $206.25 write an equation to model th
Olin [163]
Amount Earned (E) = 8.25*Hours (H)

Since he wants to buy a game system you can also write this as an inequality, if the amount of the game system has any relevance in the problem.
8.25*H >= 206.25 
8 0
3 years ago
David and his friends are making lasagna for a school dinner. There will be 400 people at dinner. The recipe for 100 people uses
blagie [28]
134.4$ will be spent on hamburgers
3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone please help me with this
    15·1 answer
  • Which is bigger 7/50 or 11/64?
    6·1 answer
  • sophina bought 3 yards of trim to put around a rectangular scarf. She wants the width of the scarf to be a whole number that is
    13·1 answer
  • The sum of 6 even integers is 130 what is the 2nd number in the sequence
    14·2 answers
  • Person A can paint the​ neighbor's house 3 times as fast as Person B. The year A and B worked​ together, it took them 10 days. H
    10·1 answer
  • Can you help me thank you <<333
    7·1 answer
  • In a pet store, the small fishbowl holds up to 23
    9·1 answer
  • Please help it due asap <br> thanks
    14·1 answer
  • Solve the parallelogram for x MARKINF people as brainlist
    7·1 answer
  • Penny buys 3 bouquets of flowers for $3 each and 4 bouquets for $2 each. Which expression gives the total cost of the bouquets t
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!